23rd August 2003, 10:19 AM
Four Third Digital System
This may not be NEWS to some.
Current digital SLR cameras with interchangeable lenses are basically based on conventional 35mm camera systems. As a result, they must be equipped with image sensors that are comparable in size to 35mm and APS film. However, because the imaging characteristics of these large CCDs are fundamentally different from those of film, a number of issues can prevent them from achieving their full performance potential. These include: (1) Although film is capable of responding to light striking the surface at a high angle of incidence, a high angle of incidence can prevent sufficient light from reaching sensor elements at the periphery of a CCD and result in reduced color definition, particularly when shooting with wide-angle lenses. (2) To achieve the resolutions required by the micron pitch of today's CCDs, the demands of optical design tend to result in the use of larger and heavier lenses.
This may be the solution to high cost of digital sensors and lenses. An out-of-the-box idea that may actually work.